nptl/tst-sem2.c

   1 /* Copyright (C) 2002-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <semaphore.h>
  22 #include <signal.h>
  23 #include <stdio.h>
  24 #include <unistd.h>
  25
  26 static int do_test (void);
  27
  28 #define TEST_FUNCTION do_test ()
  29 #include "../test-skeleton.c"
  30
  31 static int
  32 do_test (void)
  33 {
  34   sem_t s;
  35
  36   if (sem_init (&s, 0, 0) == -1)
  37     {
  38       puts ("init failed");
  39       return 1;
  40     }
  41
  42   delayed_exit (1);
  43
  44   if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
  45     {
  46       puts ("wait failed");
  47       return 1;
  48     }
  49
  50   /* We should never get here.  */
  51   puts ("wait succeeded");
  52   return 1;
  53 }